420424552532240 has 80 divisors (see below), whose sum is σ = 985863361420800. Its totient is φ = 166734886488576.

The previous prime is 420424552532239. The next prime is 420424552532273. The reversal of 420424552532240 is 42235255424024.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 420424552532191 and 420424552532200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43631852 + ... + 52388811.

It is an arithmetic number, because the mean of its divisors is an integer number (12323292017760).

Almost surely, 2^{420424552532240} is an apocalyptic number.

420424552532240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420424552532240 is an abundant number, since it is smaller than the sum of its proper divisors (565438808888560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420424552532240 is a wasteful number, since it uses less digits than its factorization.

420424552532240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96021144 (or 96021138 counting only the distinct ones).

The product of its (nonzero) digits is 3072000, while the sum is 44.

The spelling of 420424552532240 in words is "four hundred twenty trillion, four hundred twenty-four billion, five hundred fifty-two million, five hundred thirty-two thousand, two hundred forty".